if \(f(x) ={ x }^{ 3 }+3x+2\) and \(g(f(x))=x\) and \(h(g(g(x))=x \) for all \( x\quad \in \mathbb R \) then find \( { h }^{ ' }(1) \).

**Notation**: \(\mathbb R \) denotes the set of real numbers.

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